So. I've been trying to edit my gamemode, but it keeps like.. overwriting itself? I don't know. No error appears.

I'm editing the gamemode .pwn, then i'm saving it and then i'm trying to launch te server once again, but there are no changes in game, even tho i made them in the file.

I'm new in editing gamemodes, so I don't exactly know how it works.
Any help is appreciated.

Edit:
Localhost and online server seems the same. Nothing in game changes after editing the .pwn file (the server is offline when i'm editing it).

ex. I changed the welcome message and in game it appears as the one before the change.